Safety engineering – Lenze EVS9332xS User Manual

Page 358

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Safety engineering

Functional test

Monitoring the safety function with a PLC

11

11.5

11.5.3

l

11.5−5

EDSVS9332S EN 6.0−07/2013

For the functional test, check both disconnecting paths separately.

1. disconnecting path: Pulse inhibit via safety relay K

SR

The individual tests are passed if the correct states given in the table result.

Specification

Correct status

Individual test

Input relay activation (X11/34)

Output feedback (X11/K31)

Pulse inhibit

LOW

HIGH

Pulse enable

HIGH

LOW

2. disconnecting path: Controller inihibit

Requirement for the test:

ƒ "Quickstop" (QSP) function deactivated

ƒ "Automatic DC injection brake" deactivated (C0019 = 0)

ƒ Pulses enabled by the safety relay K

SR

(X11/34 = HIGH)

The individual tests are passed if the correct states given in the table result.

Specification

Correct status

Individual test

X5/28

Setpoint

Output DIGOUT

Controller inhibit

LOW

n

set

> 0

HIGH

Controller enable

HIGH

LOW

Functional test not passed

If an individual test results in an impermissible status, the functional test is
not passed.

ƒ The drive or machine has to be shut down immediately.

ƒ Commissioning is not permitted until the safety function operates

correctly.

Functional test within the
inspection interval

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